Sash machinery



UTTED STATES PATENT OFFICE. Y

ALMON DOWNS, OF ST. CLAIR, MICHIGAN.

SASH MACHINERY.

Specification of Letters Patent No. 4,262, dated November 8, 1845.

T 0 all whom t may concern Be it known that I, ALMON Dow'Ns, of St. Clair, in the county of St. Clair and State of Michigan, have invented a new and useful Machine for Making Window-Sash, called Downs Improved Sash-Machine, which is described'as follows, reference being had to the annexed drawings of the same, making part of this specification.

Figure l is a perspective View of the machine. Fig. 2 is a section of the apparatus for laying out the sash. Fig. 3 is a vertical section.

This machine consists in confining in a suitable frame A an apparatus for striking, or laying out, the stuif necessary for making the sash and an apparatus for mortising the rails and stiles. I

The apparatus for laying, or striking out the sash, is arranged at one corner of the machine and consists of a horizontal rectangular board a placed on top of the frame, and secured to two knees or right angled blocks I) b, of wood extending down and then forward horizontally through mortises or slits c: under the frame and secured at their lower extremities to a similar horizontal rectangular board rl, under t-he table to prevent said knees leaving the mortises. Against this upper board a is placed the piece of stuff e Fig. 2 to be marked, which is pushed forward, by the board a over a gage f, countersunk in the top of the frame, and having pins or points projecting from its surface and being made to revolve so as to present any desired gage to correspond with the size of the sash desired to be laid out. The gage is made fast by the dog g and ratchet wheel lz.

The apparatus for mortising the stiles of the sash is arranged in the frame A and consists of a vertical rectangular timber N Figs. l and 3 secured at the lower end to a base block Z placed on the top of the frame; and said timber N being perforated at the upper end with two slits O, having grooves formed on each of their sides, in which move corresponding tongues formed on the mallets P; which mallets are composed of any heavy material and attached by rods Q t0 spring treadles R, arranged at the lower part of the frame by which the mallets are made to strike the chisels S, arranged immediately below them in a stock frame, or

box T secured to the upright timber N, having a movable cover or front T. These chisels are held from falling (except when struck by the mallets) by elliptic orpother springs U, one secured to each side of the box, having pins F at each extremity, extending through openings in the sides of the box, and pressing against the sides of the chisels by the action of the springs U, with a force just sufhcient to sustain them from falling. When they are struck by the mallets P they descend (the stuff to be cut or mortised being placed under them and against a gage V) and cut the mortise; after which they are raised bv spring bars V secured to the sides of the hammers or mallets and having a tooth w on the lower ends of each, which is pressed in toward the chisel by a stationary cam, or block X; and said hook comes in contact during the ascent of the mallets, with a head, formed on the upper end of each chisel, and draws the chisel up with it, until the spring bar passes` the cam, or block X, when the said spring bar, is, by its own elasticity, disengaged from the chisel.

vWhat claim as my invention and desire to secure by Letters Patent is- The combination of the mallets P and spring hooks W WV with the t-readles R for operating, the mortising tools, that is to say l. claim attaching spring hooks, having their A lower ends tapered tothe sides of the sliding mallets which, on the descent of the said mallets, come in contact with stops or cams on the frame by which the direction of t-he hooks are changed inward causing the hook to pass under the head of the cutting tool simultaneously with the descent of the mallet, so that when the ma-llet is aga` raised with the hook it draws up withI it the cutting tool to the desired height, when the hook, by its tapered form and effort to 

